COBALT HSS Jobber Length Drill Bit
- Industrial Quality for professionals. JOBBER LENGTH DRILL BIT
- Heat-treated, heavy duty M35 COBALT steel body with COPPER finish
- 135 Degree split point tips prevents “wobbling” by eliminating the need for a center punch hole, ensuring self-centering and fast instant starts on contact
- COBALT COPPER finish makes this bit stronger and lasts longer than a black & gold twist drill bit. Wear, corrosion, and abrasion resistance is made better
- Precision grounded from solid one piece design for exact specifications to ensure accurate holes
- Spiral flute feature efficiently removes chips, plug, debris, and heat
- Round, straight shank on sizes 11/64″ and under. 3 Flats shank on sizes 3/16″ and up
- Packaged as 12 bits per envelope for sizes 19/64″ and under. Packaged as 6 bits per envelope on sizes 5/16″ and above. Ideal for distributors and resellers
| Part Number | Cutting Diameter | Overall Length | FLUTE Length |
|---|---|---|---|
| 58-2004 | 1/16″ | 1-7/8″ | 7/8″ |
| 58-2005 | 5/64″ | 2″ | 1″ |
| 58-2006 | 3/32″ | 2-1/4″ | 1-1/4″ |
| 58-2007 | 7/64″ | 2-5/8″ | 1-1/2″ |
| 58-2008 | 1/8″ | 2-3/4″ | 1-5/8″ |
| 58-2009 | 9/64″ | 2-7/8″ | 1-3/4″ |
| 58-2010 | 5/32″ | 3-1/8″ | 2″ |
| 58-2011 | 11/64″ | 3-1/4″ | 2-1/8″ |
| 58-2012 | 3/16″ | 3-1/2″ | 2-5/16″ |
| 58-2013 | 13/64″ | 3-5/8″ | 2-7/16″ |
| 58-2014 | 7/32″ | 3-3/4″ | 2-1/2″ |
| 58-2015 | 15/64″ | 3-7/8″ | 2-5/8″ |
| 58-2016 | 1/4″ | 4″ | 2-3/4″ |
| 58-2017 | 17/64″ | 4-1/8″ | 2-7/8″ |
| 58-2018 | 9/32″ | 4-1/4″ | 2-15/16″ |
| 58-2019 | 19/64″ | 4-3/8″ | 3-1/16″ |
| 58-2020 | 5/16″ | 4-1/2″ | 3-3/16″ |
| 58-2021 | 21/64″ | 4-5/8″ | 3-5/16″ |
| 58-2022 | 11/32″ | 4-3/4″ | 3-7/16″ |
| 58-2023 | 23/64″ | 4-7/8″ | 3-1/2″ |
| 58-2024 | 3/8″ | 5″ | 3-5/8″ |
| 58-2025 | 25/64″ | 5-1/8″ | 3-3/4″ |
| 58-2026 | 13/32″ | 5-1/4″ | 3-7/8″ |
| 58-2027 | 27/64″ | 5-3/8″ | 3-15/16″ |
| 58-2028 | 7/16″ | 5-1/2″ | 4-1/16″ |
| 58-2029 | 29/64″ | 5-5/8″ | 4-3/16″ |
| 58-2030 | 15/32″ | 5-3/4″ | 4-5/16″ |
| 58-2031 | 31/64″ | 5-7/8″ | 4-3/8″ |
| 58-2032 | 1/2″ | 6″ | 4-1/2″ |
Cobalt hss jobber length twist drill bit is ideal for drilling clean, accurate holes in hard metals such as stainless steel. First, these jobber length twist drill bits feature a 135 degree split point tip that eliminates “wobbling” and ensures instant starts. Thus, the split point eliminates the need for a pilot hole. Second, these cobalt jobber twist drill bits contain a round straight shank to fit all drill chucks. Moreover, the M35 heat-treated cobalt steel provides an optimal combination of durability and drilling performance. Additionally, these twist drill bits perform better and last longer than the black & gold twist drill bits.